The best replacement for menstrual period is implantation bleeding.

The best alternatives to menstrual period are rated as following:
★★★★★  implantation bleeding
★★  pregnancy symptoms
  bleeding

Your alternative for menstrual period is not listed? Suggest!
Speaking about menstrual period, one probably shouldn't forget about ovulation.

Other search terms related to menstrual period and their ratings are:
★★★★★ ovulation
★★★ brown blood
★★ black blood
★★ odor
★★ large blood clots
You have in mind a companion for menstrual period and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of menstrual period in all years. Click on graph for more.
menstrual period
implantation bleeding
pregnancy symptoms