I too must test often and the over the counter test are too costly. I have the clearblue fertility monitor that should be used with first morning urine. However my reproductive endocrinologists prefers me to test in the evening.
So what I do is simply use the Clear Blue Monitor in the morning and manual tests purchased online at night.
They are very good. May I also suggest that after intercourse that you insert a INSTEAD CUP. The instead cup looks like a diaphragm and was designed as a disposable feminine hygiene product. I have read that the instead cup will help to keep the sperm pooled around the cervix. It may help if your partner assist with and “O” (orgasm) after inserting the instead cup. When you have an “O” the cervix dips down and thus will pull up the sperm into the vagina.
***never insert sperm directly into the vagina as it can cause an allergic reaction.
Good Luck and Much Baby Dust to You!!!!!!!

Try http://www.early-pregnancy-tests.com/
The midstream ones are under $2 each and for just the test strips, they’re under $1… cheaper the more you buy. You can get the preggo tests there too.
They also ship the same day so you get them pretty quickly. Good luck! =)

Well they worked for me and I have PCOS which can mess up OPKs. I got mine from ebay. You can even get combos of OPKs and pregnancy tests there. A good place to go for OPK comparisons from different brands is:http://www.peeonastick.com/opks.html

I think they are all pretty much the same. I use Answer.