I came off my contraceptive pill on the 1st July to try for a baby. Me and my partner have had sex most nights since. Then on Saturday 15th when I had been to the toilet and wiped I had some pinkness on the paper but it stopped within that day. I took a strip test on Sunday but that was negative. Could this have been implantation bleeding or my body adjusting I'm unsure. When would be best to test again? It will be three week of no pill on Sunday. I also have not had periods for a while due to contraception so have no idea when I ovulate or anything to do with my cycle.