Me and the hubby have been trying to conceive for 7 months now

Shamisha
Hello everyone...a friend of mine recommended me to use this app and so far I like it. Me and my husband have been trying to conceive since January, but January is when I came off the pill after being on it for 7 years. My cycles are still trying to get back to normal so it's been kind of difficult to track and know when I'm ovulating (unless I take an OPK)... I had a question to maybe ask anyone who have gotten pregnant before, did anyone get cold symptoms right after predicted ovulation? And also how soon can you start testing for pregnancy before you can find out it's positive because I hear different number of days after ovulation to start testing. Thanks everyone in advance for any comments.