This plugin is blocking another plugin

I couldn’t find any plugin in the WordPress market place [1] with that name. However, I found a premium plugin that seems to be the one that you are using, over here [2].

Unfortunately, since you are using a non-free plugin I cannot offer a solution because I do not have access to their product, I don’t know how their plugin works and without access to the code I cannot investigate the cause of the incompatibility; if you send me a copy of the code I may be able to help, otherwise it will be impossible for me to guess what is causing the problem.

Contact the developer of that “pregnancy” plugin for assistance.

[1] https://www.ads-software.com/plugins/search/pregnancy
[2] https://codecanyon.net/item/a/13325480