The pill & perscription tablets...please help

Hey girlys hope your all doing ok
Me and my bf have been through 2 Mc's the first time i got pregnant it was are own fault and were not been careful and then lost it and the second time i was on the pill and lost it we were going to try for a baby but we then decided not to after lots of argueing and me not over the mc's (i have had 3 in total) so i went back on the pill and been takeing it proerly etc... i then went to the docs about (sorry tmi) having alot of upset tummy and i got put on some tablets, i read the leaflet and it did not say anything about it would stop affecting my pill and the docter never said anything to me, so we have been bedding alot of for about 2 weeks i have been very tieard and feeling very sick and i keep feelng very dizzy and light headed now i am not shore if this is because i got diagnosed with having a bit of a phantom pregnancy when i was depressed which i have only felt better for about a month, so when i went to the pharmacy to pick up another perscription i asked him on these tablets if i would affect my pill and he said yes so i went home looked on a ovulation calculater and the time when i was fertile and very fertile we bedded tem days alot due to his parents been away....we have only just got back to normal in are relationship after alot of argueing and me been depressed i am not shore what to do i have now stopped taking my pill but been careful when we bed, i would have been due to take my last pill sunday?? what you think??
love and baby dust Aimee-Victoria & My Lil Angels In The Sky XxXxX